<template>
  <div class="hello">
    <h1>{{ msg }}</h1>
    <p>
      For a guide and recipes on how to configure / customize this project,<br>
      check out the
      <a href="https://cli.vuejs.org" target="_blank" rel="noopener">vue-cli documentation</a>.
    </p>
    <router-view/>
    <router-link to="/">[跳转到主页]</router-link>
    <router-link to="/login">[登录]</router-link>
    <router-link to="/logout">[登出]</router-link>
 
    <!-- javascript跳转页面 -->
    <button @click="goHome">[跳转到主页]</button>
 
    <!-- 回到上一页 -->
    <button @click="upPage">[上一页]</button>
    <button @click="downPage">[下一页]</button>
 
    <!-- 回到下一页 -->

  </div>
</template>

<script>
export default {
  name: 'HelloWorld',
  props: {
    msg: String
  },
  methods: {
      // 跳转页面方法
      goHome() {
        this.$router.push("/");
      },
      upPage() {
        //  后退一步记录，等同于 history.back()
        this.$router.go(-1);
      },
      downPage() {
        // 在浏览器记录中前进一步，等同于 history.forward()
        this.$router.go(1);
      }
    }

}
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>
h3 {
  margin: 40px 0 0;
}
ul {
  list-style-type: none;
  padding: 0;
}
li {
  display: inline-block;
  margin: 0 10px;
}
a {
  color: #42b983;
}
</style>
